/**
 * Software License, Version 1.0
 * 
 * Copyright 2003 The Trustees of Indiana University.  All rights reserved.
 * 
 *
 *Redistribution and use in source and binary forms, with or without 
 *modification, are permitted provided that the following conditions are met:
 *
 *1) All redistributions of source code must retain the above copyright notice,
 * the list of authors in the original source code, this list of conditions and
 * the disclaimer listed in this license;
 *2) All redistributions in binary form must reproduce the above copyright 
 * notice, this list of conditions and the disclaimer listed in this license in
 * the documentation and/or other materials provided with the distribution;
 *3) Any documentation included with all redistributions must include the 
 * following acknowledgement:
 *
 *"This product includes software developed by the Community Grids Lab. For 
 * further information contact the Community Grids Lab at 
 * http://communitygrids.iu.edu/."
 *
 * Alternatively, this acknowledgement may appear in the software itself, and 
 * wherever such third-party acknowledgments normally appear.
 * 
 *4) The name Indiana University or Community Grids Lab or NaradaBrokering, 
 * shall not be used to endorse or promote products derived from this software 
 * without prior written permission from Indiana University.  For written 
 * permission, please contact the Advanced Research and Technology Institute 
 * ("ARTI") at 351 West 10th Street, Indianapolis, Indiana 46202.
 *5) Products derived from this software may not be called NaradaBrokering, 
 * nor may Indiana University or Community Grids Lab or NaradaBrokering appear
 * in their name, without prior written permission of ARTI.
 * 
 *
 * Indiana University provides no reassurances that the source code provided 
 * does not infringe the patent or any other intellectual property rights of 
 * any other entity.  Indiana University disclaims any liability to any 
 * recipient for claims brought by any other entity based on infringement of 
 * intellectual property rights or otherwise.  
 *
 *LICENSEE UNDERSTANDS THAT SOFTWARE IS PROVIDED "AS IS" FOR WHICH NO 
 *WARRANTIES AS TO CAPABILITIES OR ACCURACY ARE MADE. INDIANA UNIVERSITY GIVES
 *NO WARRANTIES AND MAKES NO REPRESENTATION THAT SOFTWARE IS FREE OF 
 *INFRINGEMENT OF THIRD PARTY PATENT, COPYRIGHT, OR OTHER PROPRIETARY RIGHTS. 
 *INDIANA UNIVERSITY MAKES NO WARRANTIES THAT SOFTWARE IS FREE FROM "BUGS", 
 *"VIRUSES", "TROJAN HORSES", "TRAP DOORS", "WORMS", OR OTHER HARMFUL CODE.  
 *LICENSEE ASSUMES THE ENTIRE RISK AS TO THE PERFORMANCE OF SOFTWARE AND/OR 
 *ASSOCIATED MATERIALS, AND TO THE PERFORMANCE AND VALIDITY OF INFORMATION 
 *GENERATED USING SOFTWARE.
 */
package cgl.narada.gui.admin.reliable.edittable;

import java.awt.BorderLayout;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextField;
import javax.swing.ListSelectionModel;

public class EditEntityView implements ActionListener{

  private GridBagConstraints gbc;
  private JPanel mainPanel;
  private JPanel subPanel;

  private JLabel registerLabel;
  private JTextField registerField;
  private JButton registerButton;

  private JLabel deregisterLabel;
  private JList entityList;
  private JScrollPane scrollPane;
  private JButton deregisterButton;

  private JLabel sysStatusLabel;

  public EditEntityView() {
    mainPanel = new JPanel();
    mainPanel.setLayout(new BorderLayout());

    subPanel = new JPanel();
    subPanel.setLayout(new GridBagLayout());
    gbc = new GridBagConstraints();

    // first row
    gbc.insets = new Insets(2,2,2,2);
    gbc.gridx = 0;
    gbc.gridy = 0;
    gbc.gridwidth = 1;
    gbc.fill = GridBagConstraints.HORIZONTAL;
    gbc.anchor = GridBagConstraints.EAST;
    registerLabel = new JLabel("Input Register Entity");
    subPanel.add(registerLabel,gbc);

    gbc.insets = new Insets(2,2,2,2);
    gbc.gridx = 1;
    gbc.gridy = 0;
    gbc.gridwidth = 1;
    gbc.fill = GridBagConstraints.HORIZONTAL;
    gbc.anchor = GridBagConstraints.CENTER;
    registerField = new JTextField(10);
    subPanel.add(registerField,gbc);

    gbc.insets = new Insets(2,2,2,2);
    gbc.gridx = 2;
    gbc.gridy = 0;
    gbc.gridwidth = 1;
    gbc.fill = GridBagConstraints.HORIZONTAL;
    gbc.anchor = GridBagConstraints.CENTER;
    registerButton = new JButton("Register");
    registerButton.addActionListener(this);
    subPanel.add(registerButton,gbc);

    // second row
    gbc.insets = new Insets(2,2,2,2);
    gbc.gridx = 0;
    gbc.gridy = 1;
    gbc.gridwidth = 1;
    gbc.fill = GridBagConstraints.HORIZONTAL;
    gbc.anchor = GridBagConstraints.EAST;
    deregisterLabel = new JLabel("Select Deregister Entity");
    subPanel.add(deregisterLabel,gbc);

    gbc.insets = new Insets(2,2,2,2);
    gbc.gridx = 1;
    gbc.gridy = 1;
    gbc.gridwidth = 1;
    gbc.fill = GridBagConstraints.HORIZONTAL;
    gbc.anchor = GridBagConstraints.CENTER;
    // adjust Jlist setting
    entityList = new JList(EntityListModel.getModel());
    entityList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
    scrollPane = new JScrollPane(entityList);
    entityList.setFixedCellWidth(20);
    subPanel.add(scrollPane,gbc);

    gbc.insets = new Insets(2,2,2,2);
    gbc.gridx = 2;
    gbc.gridy = 1;
    gbc.gridwidth = 1;
    gbc.fill = GridBagConstraints.HORIZONTAL;
    gbc.anchor = GridBagConstraints.CENTER;
    deregisterButton = new JButton("Deregister");
    deregisterButton.addActionListener(this);
    subPanel.add(deregisterButton,gbc);

    sysStatusLabel = new JLabel("System response:");
    mainPanel.add(sysStatusLabel,BorderLayout.SOUTH);
    mainPanel.add(subPanel,BorderLayout.CENTER);
  }

  public JPanel getJPanel(){
    return mainPanel;
  }

  public void actionPerformed(ActionEvent ae){
    Object object = ae.getSource();
    if(object == registerButton){
      int entityId = Integer.parseInt(registerField.getText());
      EntityListModel.addEntity(entityId);
    }else if(object == deregisterButton){
      int position = entityList.getSelectedIndex();
      EntityListModel.removeEntity(position);
    }
  }
}
